Well, I can't say that I've ever had anyone mention any snapping or popping of pex??
Never had any drooping issues either if it was clipped up properly, now under a home with no basement often there is nothing to attach to but in basements never a problem
All of this is all fine and dandy as long as you have unlimited funds, I think this is where different markets vary. You as well as I often deal with folks who are looking at this whole owb installation as a project and they've budgeted for it or simply have plenty of money to do it to the finest detail. However in my area it's not like that at all, folks come here and want something that will work and its not because they "want it" its because there trying to decide on whether to pay the electric bill or buy food for there family. It's that way among a lot of members here I've spoken to as well, maybe not deciding between heat or food but still under serious financial stress due to heating.
With that being said, yea there are superior products out there to regular pex, yes there is different quality of line on the market in regards to underground, but many folks simply can not afford it and would never buy it if they could. There are products out there for them, I've installed miles of insulated 3-5 wrap pex packages and haven't had a call yet saying that one has failed, going back several years now. I believe that ditch preparation is as important as the line itself and taking the time to make sure it's installed correctly.
There is just more ways to skin a cat I guess ya could say, we all have customers who want every detail so so and the best products available, but everyone is def not like that, and it's far less common in my area. I feel through the brand you carry alone tends towards a different customer base, and the area your in probably takes it further that way as well. It's just the majority of folks i deal with are just the guy next door looking for a bit of financial independence in tough times. Varying products and markets can make huge differences.
But yea pex al pex is more rigid, I like it too but many dealers push it telling them its better for there stove simply because they don't know any difference, just came from that empyre install the other day where a dealer sold him pex al pex for the o2 barrier, I didn't wanna ruin his day by telling him it didn't matter in an open system but ahh well lol
